Dakota Oil 1A Smith
API 4003320026 · Custer County, South Dakota · Wildcat field
Converted-Fresh Water SupplyDry Hole
API
4003320026
Operator
Dakota Oil Producers
County
Custer
Field
Wildcat
Location
Permit
1539
Formation tops
South Dakota records 8 formations for this well, shallowest first.
| Formation | Top (ft) | Age |
|---|---|---|
| Spearfish Formation | 170 | Triassic/Permian |
| Minnekahta Limestone | 745 | Permian |
| Opeche Shale | 790 | Permian |
| Minnelusa Formation | 880 | Permian/Pennsylvanian |
| Converse Sand, Minnelusa Formation | 1,114 | Permian |
| Red Marker, Minnelusa Formation | 1,124 | Permian/Pennsylvanian |
| 1st Leo Sandstone, Minnelusa Formation | 1,318 | Pennsylvanian |
| 2nd Leo Sandstone, Minnelusa Formation | 1,410 | Pennsylvanian |
A dash is a formation South Dakota records for this well without a depth.
Completion
South Dakota files 1 completion report for this well.
Vertical Well
Converted-Fresh Water SupplyDry HoleSpudded
1993-10-30
Measured depth
1,410 ft
True vertical depth
1,410 ft
Location
43.526198, -103.852857
43.52620, -103.85286 · Surface location as filed with South Dakota⌘ or Ctrl + scroll to zoom
Every well in Custer County, South Dakota
South Dakota state record, from SD_wells_SDOILexport_Export__wells_Table_4_Web.parquet. Corpus built 2026-09-11.